Have I used too much thermal Paste

[Backtothere]

I got a new Noctua NH-D15, the instructions said to apply a blob about 0.4-0.5 cm in diameter.
I did this, however after removing the heatsync to check if it was covered, it looked really well done and very thin except for a small bit that I believe went off of the edge. This has led me to believe that I may have used slightly too much thermal paste.
The blob I put on the CPU was this size:

Unfortunately I could not find a picture that related to the exact size of the thermal compound afterwards as everyone applies it in a different way.

Before running Prime95 my max temperature reached 72 Degrees and my idle temperature was at 32-31 Degrees.

Now Running Prime95 my max temperature reaches 52 Degrees and my idle temperature is at 30 Degrees.

You see, I was expecting the temperature under full load to be at 42-38 Degrees for my i5-4670k processor on stock voltage and clock speed, instead it is a whole 10-14 degrees higher than that.
Can anyone send me a picture of how much Noctua NT-H1 thermal paste I should be using for the best temperatures on an NH-D15 or give me some advice on what I should do?

 

[das_stig]

Your old temps of 32/52 are good, I have seen posts saying 30-40 at idle and up to 70 on full load acceptable on stock speeds, so you may just have put a tad too much.

I prefer to put a tiny amount on and spread it around using a q-tip with the heads cut off and add a little when an area needs it.

 

[Backtothere]

Your old temps of 32/52 are good, I have seen posts saying 30-40 at idle and up to 70 on full load acceptable on stock speeds, so you may just have put a tad too much.

I prefer to put a tiny amount on and spread it around using a q-tip with the heads cut off and add a little when an area needs it.

30 - 52 are my new temperatures with the NH-D15 installed and 32-72 was with the stock intel cooler, as of the research I did on the NH-D15 before hand I was expecting it to perform at 10 Degrees less on full load than it is currently doing now.
So either I've used too much thermal compound or my research on the temperatures of the NH-D15 is wrong (which I doubt it is wrong).
The problem is if I do need to apply less thermal paste I am not sure of how much to put on, because like I said everyone does it in different methods and with different compounds.

 

[Backtothere]

Ok do I want it to end up looking like this?

or bigger/smaller.